Crayon Syntax Highlighter plugin gives the following error when updated to my Php 7.3 version.
PHP Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /home/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340
Open the file /public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php Change the code on line 340 as follows.
Find:
return preg_replace('/[^\w-+#]/msi', '', $id);Replace:
return preg_replace('/[^\w\-+#]/msi', '', $id);